We just got off the Pearl and had an Inside room...8019...there was a pulldown bed from the wall that came with a ladder....NOT MUCH ROOM....but there were a few cabins with 3 people in it and they managed....but I think you are going on a 19 day cruise and that could be TIGHT for that number of days...the ladder is at the end of the bed, so if you had to get up in the middle of the night, it would work...and if you have lots of luggage, you would really be cramped...we got all of our luggage under the beds, so it wasn't a problem.
We always have the beds made up in a twin arrangement...gives you a small aisle down the middle of the beds for a little more walking around room.....The inside rooms on the Pearl were some of the smallest rooms we've had...but when you don't spend much time in the room, it really doesn't make any difference...Have a GREAT cruise....We had more snow last night so I'm looking at booking another cruise soon...